# Maintainer: Filipe Laíns (FFY00) <lains@archlinux.org>
# Contributor: Anatol Pomozov <anatol.pomozov@gmail.com>
# Contributor: Martin Schmölzer <mschmoelzer@gmail.com>

_target=riscv64-elf
pkgname=$_target-gcc
pkgver=12.2.0
pkgrel=1
#_snapshot=8-20180427
pkgdesc='The GNU Compiler Collection - cross compiler for RISCV64 (bare-metal) target'
arch=(loong64 x86_64)
url='https://gcc.gnu.org/'
license=(GPL LGPL FDL)
depends=($_target-binutils zlib libmpc libisl zstd)
makedepends=(gmp mpfr $_target-newlib)
optdepends=("$_target-newlib: Standard C library optimized for embedded systems")
options=(!emptydirs !strip !lto)
source=(https://ftp.gnu.org/gnu/gcc/gcc-$pkgver/gcc-$pkgver.tar.xz{,.sig}
        #ftp://gcc.gnu.org/pub/gcc/snapshots/$_snapshot/gcc-$_snapshot.tar.xz
	)
sha512sums=('e9e857bd81bf7a370307d6848c81b2f5403db8c7b5207f54bce3f3faac3bde63445684092c2bc1a2427cddb6f7746496d9fbbef05fbbd77f2810b2998f1f9173'
            'SKIP')
validpgpkeys=(D3A93CAD751C2AF4F8C7AD516C35B99309B5FA62  # Jakub Jelinek <jakub@redhat.com>
              13975A70E63C361C73AE69EF6EEB81F8981C74C7) # Richard Guenther <richard.guenther@gmail.com>

if [ -n "$_snapshot" ]; then
  _basedir=gcc-$_snapshot
else
  _basedir=gcc-$pkgver
fi

prepare() {
  mkdir build-gcc

  cd $_basedir

  echo $pkgver > gcc/BASE-VER
}

build() {
  cd build-gcc

  CFLAGS=${CFLAGS/-Werror=format-security/}
  CXXFLAGS=${CXXFLAGS/-Werror=format-security/}

  export CFLAGS_FOR_TARGET='-g -Os -ffunction-sections -fdata-sections'
  export CXXFLAGS_FOR_TARGET='-g -Os -ffunction-sections -fdata-sections'

  "$srcdir"/$_basedir/configure \
    --target=$_target \
    --prefix=/usr \
    --with-sysroot=/usr/$_target \
    --with-native-system-header-dir=/include \
    --libexecdir=/usr/lib \
    --enable-languages=c,c++ \
    --enable-threads=single \
    --enable-plugins \
    --enable-multilib \
    --enable-libgcc \
    --disable-libgomp \
    --disable-libquadmath \
    --disable-libffi \
    --disable-libssp \
    --disable-libmudflap \
    --disable-decimal-float \
    --disable-libstdcxx-pch \
    --disable-nls \
    --disable-shared \
    --disable-tls \
    --with-newlib \
    --with-gnu-as \
    --with-gnu-ld \
    --with-system-zlib \
    --with-headers=/usr/$_target/include \
    --with-python-dir=share/gcc-$_target \
    --with-gmp \
    --with-mpfr \
    --with-mpc \
    --with-isl \
    --with-libelf \
    --enable-gnu-indirect-function \
    --with-pkgversion="Arch Linux Repositories" \
    --with-bugurl='https://bugs.archlinux.org/'

  make
}

package() {
  cd build-gcc

  make DESTDIR="$pkgdir" install -j1

  # strip target binaries
  find "$pkgdir"/usr/lib/gcc/$_target/$pkgver "$pkgdir"/usr/$_target/lib \
       -type f -and \( -name \*.a -or -name \*.o \) \
       -exec $_target-objcopy -R .comment -R .note -R .debug_info -R .debug_aranges \
       -R .debug_pubnames -R .debug_pubtypes -R .debug_abbrev -R .debug_line \
       -R .debug_str -R .debug_ranges -R .debug_loc '{}' \;

  # strip host binaries
  find "$pkgdir"/usr/bin/ "$pkgdir"/usr/lib/gcc/$_target/$pkgver -type f -and \( -executable \) -exec strip '{}' \;

  # Remove files that conflict with host gcc package
  rm -r "$pkgdir"/usr/share/man/man7
  rm -r "$pkgdir"/usr/share/info
  rm "$pkgdir"/usr/lib/libcc1.*
}

